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WorksheetsMicrobiology
Total questions: 10
Worksheet time: 5mins
Kligler iron agar (KIA) differs from triple-sugar iron agar (TSI) in the:
Ratio of lactose to glucose
Ability to detect H2S production
Use of sucrose in the medium
Color reaction denoting production of acid
Which Pseudomonas is usually associated with a lung infection related to cystic fibrosis?
P. fluorescens
P. aeruginosa
P. putida
Burkholderia pseudomallei
A visitor to South America who returned with diarrhea is suspected of being infected with V. cholerae. Select the best medium for recovery and identification of this organism.
MacConkey agar
Blood agar
TCBS agar
XLD agar
The test used most often to separate the Micrococcaceae family from the Streptococcaceae family is:
Bacitracin
Catalase
Hemolysis pattern
All of these options
Which test is used to differentiate the viridans streptococci from the group D streptococci and enterococci?
Bacitracin disk test
CAMP test
Hippurate hydrolysis test
Bile esculin test
The bile solubility test causes the lysis of:
Streptococcus bovis colonies on a blood agar plate
Streptococcus pneumoniae colonies on a blood agar plate
Group A streptococci in broth culture
Group B streptococci in broth culture
The quellung test is used to identify which Streptococcus species?
S. pyogenes
S. agalactiae
S. sanguis
S. pneumoniae
MTM medium is used primarily for the selective recovery of which organism from genital specimens?
Neisseria gonorrhoeae
Neisseria lactamica
Neisseria sicca
Neisseria flavescens
The β-galactosidase test aids in the identification of which Neisseria species?
N. lactamica
N. meningitidis
N. gonorrhoeae
N. flavescens
. Large gram-positive spore-forming rods growing on blood agar as large, raised, β-hemolytic colonies that spread and appear as frosted green-gray glass are most likely:
Pseudomonas spp.
Bacillus spp.
Corynebacterium spp.
Listeria spp.
